Filana Therapeutics (FLNA) Options Chain
NASDAQ: FLNAHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Nov 20, 2026
- Days to expiration
- 39
- Share price
- $0.8168
- Put/call ratio (OI)
- 0.89
- Put/call ratio (volume)
- 0.04
- Expected move
- ±$0.0667
- Open interest (C / P)
- 19 / 17
FLNA options summary
The FLNA options chain for the November 20, 2026 expiration lists 7 call and 5 put contracts, with 39 days until expiration. Open interest stands at 19 calls and 17 puts, a put/call ratio of 0.89, which is fairly balanced between calls and puts. At-the-money implied volatility near the $1.00 strike is 25.0%, which implies the market expects a move of about ±$0.0667 (8.2%) in Filana Therapeutics stock by expiration.
The most open interest sits at the $3.00 call (19 contracts) and the $3.00 put (15 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
FLNA options chain · November 20, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 0.35 | 0.00 | 0.00 | 0.50 | — | — | — | |||||
| 0.10 | 0.00 | 0.00 | 1.00 | 0.00 | 0.00 | 0.20 | |||||
| 0.05 | 0.00 | 0.00 | 1.50 | 0.00 | 0.00 | 0.70 | |||||
| 0.05 | 0.00 | 0.00 | 2.00 | 0.00 | 0.00 | 1.30 | |||||
| 0.05 | 0.00 | 0.00 | 2.50 | 0.75 | 1.70 | 0.93 | |||||
| 0.05 | 0.00 | 0.15 | 3.00 | 0.15 | 4.30 | 1.92 | |||||
| 0.05 | 0.00 | 0.00 | 3.50 | — | — | — | |||||
In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.
Frequently asked questions
What is the FLNA put/call ratio?
For the November 20, 2026 expiration, the FLNA put/call ratio based on open interest is 0.89 (17 puts vs 19 calls), and 0.04 based on today's volume. A ratio above 1 means more puts than calls.
What is FLNA's implied volatility?
At-the-money implied volatility for FLNA options expiring November 20, 2026 is about 25.0%, an annualized estimate of how much the market expects Filana Therapeutics stock to move.
How many FLNA option expiration dates are there?
FLNA has 6 listed expiration dates, from Oct 16, 2026 to Jan 21, 2028.
What does "in the money" mean?
A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.